 | Great Blue Lobelia (Lobelia siphilitica). Hardy, North American herbaceous perennial Description: Bright blue flowers in dense clusters, mid to late summer Habit: Flower spikes grow 2-3 feet high Culture: Prefers full sun to part shade and humus rich, moist garden loam; tolerates wet ground Hardiness: Cold hardy to USDA Zone 4 Origin: North America Attributes: Rain garden, Deer resistant, Attracts butterflies and hummingbirds This native wildflower has been grown in American flower gardens since at least... - Great Blue Lobelia (Lobelia siphilitica). |
